The United States appears to be moving closer to joining Israel’s conflict with Iran with a possible strike on the country’s key nuclear facilities – including the Fordow Fuel Enrichment Plant, which is hidden deep inside a mountain.

The 40,000 U.S. troops in the Middle East would be vulnerable to counterattacks from Iran, not to mention other U.S. citizens in the region.

More than two dozen U.S. Air Force KC-135R and KC-46A tankers took off from bases across the U.S. and headed east over the Atlantic, The War Zone reported earlier. The U.S. Navy's aircraft carrier USS Nimitz has also appeared to be heading toward the Middle East from Asia.